Montane Nightjar (Caprimulgus ruwenzorii) - HBW 5, p. 370

Taxonomy:Caprimulgus ruwenzorii Ogilvie-Grant, 1908, Mubuku Valley, Mt Ruwenzori. Often considered conspecific with C. poliocephalus; these two form superspecies with C. nigriscapularis and C. pectoralis. Angolan population has been separated as race koesteri, and in tail pattern appears intermediate between nominate and guttifer; this isolated population has even been suggested to be a separate species. Race guttifer has occasionally been treated as a separate species. Both of these forms have alternatively been considered races of C. poliocephalus. Two subspecies currently recognized.